Can 'call up' substitute for 'call upon in this example? He had to call upon his inner reserves of strength to keep going.
Jun 11, 2014 11:41 AM
Answers · 10
Personally I wouldn't use call up in this situation. Call upon is more natural.
June 11, 2014
Possibly, but 'call upon' is the better and more appropriate phrase here. Why do you want to change it?
June 11, 2014
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